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Excretory Products And Their Elimination -1(In Hindi)
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Nitrogenous waste, excretory organs of different animals

Sandeep Singh Rao
Qualifications : M. Sc. (Biotechnology),NET with AIR-75 Experience : 3 Year teaching experience in pre-medical NEET(UG) level

U
Unacademy user
sir I have doubt in digestion and absorption my question is that why some enzymes are released in .... inactive form particularly of pancreatic juice for ex if I take trypsinogen chymotripsinogen and procarboxypeptidase why they can't be released in active form ???
Sanjna Gaur
9 months ago
payal same yehi question h mera.
Payal Rathod
9 months ago
ya even my also but no one is replying?
Sandeep Singh Rao
9 months ago
all thease enzymes require an optimum pH for activation which provided by duodenum of small intestine
Sandeep Singh Rao
3 months ago
if all these enzymes are release in active form it cause harmful effect on pancreatic duct 😊
sir bilkul gazab explain krte ho really awesome , fantastic , fabulous , wonderful , outstanding , excellent jaise words kam pad rehe h apko appreciate krne ke liye really bhut bhadya explain kiya . please upload more videos please sir ..................
  1. Excretory Products And Their Elimination Lecture-1


  2. Overview Introduction Human Excretory System Urine Formatiorn Function of tubules Mechanism of concentration of the filtrate Regulation of kidney Micturition


  3. Introduction Excretion is the process by which metabolic wastes and other non-useful materials are eliminated from an organism. In vertebrates this is primarily carried out by the lungs, kidneys and skin. Animals accumulate ammonia, urea, uric acid, carbon dioxide, water and ions like Nat, K+, Cl,phosphate, sulphate, etc., either by metabolicactivities or by other means like excess ingestion. These substances have to be removed totally or partially. Osmoregulation is the process of maintaining salt and water balance (osmotic balance) across membranes within the body. The fluids inside and surrounding cells are composed of water, electrolytes, and non-electrolytes. Ammonia, urea and uric acid are the major forms of nitrogenous wastes excreted by the animals.


  4. Nitenous Waste mmona Uric Aid toxless then -D less toxfc then D More toxic D Process Ureoelirm becavse inslvble in wats L)m uric acid Yecquirer Eyampleand Sn insectr mple . Mammals mosh Coelentyt fesh adul amphibian, hvin, n Land, manne shes, tuHles bids, land Yephles


  5. Excretory organs Protonephridia or flame cells- Platyhelminthes (Flatworms, e.g., Planaria),rotifers, some annelidsand the cephalochordate- Amphioxus Nephridia- earth worms and other annelids Malpighian tubules - most of the insects including cockroaches. Antennal glands or green glands - crustaceans like prawns. Kidney - Vertebrates